trimarchi@gandalf.sssup.it wrote:
... if I understand the physical address is latched during power on and if the logic is not good maybe it can be latched a different addresss in different session. I like somenthing that permits at software developer to easy search for the physical address.
The "mii info" command (without a PHY address as parameter) does exactly what you need:
=> mii info PHY 0x10: OUI = 0x5043, Model = 0x08, Rev = 0x07, 10baseT, HDX PHY 0x11: OUI = 0x5043, Model = 0x08, Rev = 0x07, 10baseT, HDX PHY 0x12: OUI = 0x5043, Model = 0x08, Rev = 0x07, 10baseT, HDX PHY 0x13: OUI = 0x5043, Model = 0x08, Rev = 0x07, 100baseT, FDX PHY 0x14: OUI = 0x5043, Model = 0x08, Rev = 0x07, 10baseT, HDX PHY 0x15: OUI = 0x0000, Model = 0x00, Rev = 0x00, 10baseT, HDX PHY 0x16: OUI = 0x0000, Model = 0x00, Rev = 0x00, 10baseT, HDX PHY 0x17: OUI = 0x0000, Model = 0x00, Rev = 0x00, 10baseT, HDX PHY 0x18: OUI = 0x0001, Model = 0x20, Rev = 0x02, 10baseT, HDX PHY 0x19: OUI = 0x0001, Model = 0x20, Rev = 0x02, 10baseT, HDX PHY 0x1A: OUI = 0x0001, Model = 0x20, Rev = 0x02, 10baseT, HDX PHY 0x1B: OUI = 0x0001, Model = 0x20, Rev = 0x02, 10baseT, HDX PHY 0x1C: OUI = 0x0001, Model = 0x20, Rev = 0x02, 10baseT, HDX PHY 0x1D: OUI = 0x0001, Model = 0x20, Rev = 0x02, 10baseT, HDX PHY 0x1E: OUI = 0x0000, Model = 0x00, Rev = 0x00, 10baseT, HDX PHY 0x1F: OUI = 0x0000, Model = 0x00, Rev = 0x00, 10baseT, HDX
Now which of these should the autodetect code pick? (hint: 0x13 is wrong, even if it is the only one that shows a 100Mbps link). Also, this really is a board with working MDIO, with correct pullups, so no "ghost" PHYs in the list.
cu Michael